46. Assertion (A): Drinking of whisky increases the frequency of urination.
    Reason (R): Alcohal intake speed up the secretion of vasopressin in the body.
    Codes

1. 1. Both A and R are true and R is the correct explanation of A

   
   
   

   2. Both A and R are true but R is not a correct explanation of A

   
   
   

   3. A is true but R is false

   
   
   

   4. A is false but R is true

   
   
   

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1. View Hint View Answer Discuss in Forum

   N/A

   Correct Option: A

   N/A

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47. Which Phenomenon do bats or dolphins use to find prey, predators or obstacles?

1. 1. Refraction of sound

   
   
   

   2. Formation of beats

   
   
   

   3. Scattering of sound

   
   
   

   4. Echo location

   
   
   

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1. View Hint View Answer Discuss in Forum

   N/A

   Correct Option: D

   N/A

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48. In human body, which one of following harmones regulate blood calcium and phosphate?

1. 1. Glucagon

   
   
   

   2. Growth hormone

   
   
   

   3. Parathyroid hormone

   
   
   

   4. Thyroxine

   
   
   

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1. View Hint View Answer Discuss in Forum

   N/A

   Correct Option: C

   N/A

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49. Which one among the following statements about stomach is not correct?

1. 1. Stomach act as a temporary reservoir

   
   
   

   2. Stomach mixes food with gastric juice

   
   
   

   3. Stomach secretes liplase and amylase in gastric

   
   
   

   4. Rate of stomach emptying depends on the type of food.

   
   
   

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1. View Hint View Answer Discuss in Forum

   N/A

   Correct Option: C

   N/A

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50. Which of the following is a female sex harmone?

1. 1. Estrogen

   
   
   

   2. Androgen

   
   
   

   3. Auxin

   
   
   

   4. Insulin

   
   
   

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1. View Hint View Answer Discuss in Forum

   N/A

   Correct Option: A

   N/A

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